how deep should a pond be?
I'm designing a concrete pond to run the length (6.5m) of a living room
window-wall (not yet built either). Maybe 1m across.
But how deep? I'd like the flexibility to grow a range of plants, but I
don't think I want a 'marginal shelf'. I assume I can balance things
precariously on underwater stands while they get established.
How about 700mm?
thanks
will
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